:root {
  --paper: #F3F0E8;
  --ink: #171614;
  --muted: #5C564F;
  --line: #D5CCBF;
  --serif: "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

html, body { background: var(--paper); }

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.45;
}

img { display: block; max-width: 100%; }
a { color: inherit; }

::selection { background: var(--ink); color: var(--paper); }

.skip {
  position: absolute;
  left: 16px;
  top: 16px;
  transform: translateY(-160%);
  background: var(--ink);
  color: var(--paper);
  padding: 8px 12px;
  z-index: 5;
}
.skip:focus { transform: none; }

.bar {
  position: fixed;
  z-index: 2;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  padding: 28px 7vw 0;
  font-size: 16px;
  pointer-events: none;
}
.bar a { pointer-events: auto; text-decoration: none; }
.bar a:hover { opacity: 0.65; }
.bar nav { display: flex; gap: 28px; }
.bar a[aria-current="page"] { border-bottom: 1px solid var(--ink); }
a:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: 4px;
}

main {
  min-height: 100vh;
  padding: 16vh 7vw 64px;
}

.carbon-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 6vw;
  align-items: center;
  margin-bottom: 64px;
}

.carbon-fig {
  margin: 0;
  max-width: 480px;
  border: 1px solid var(--ink);
  background: var(--ink);
}

.mark { width: 92px; margin-bottom: 32px; }

.rule {
  width: 0;
  height: 1px;
  margin-bottom: 28px;
  background: var(--ink);
  animation: grow 1.15s var(--ease) 0.25s forwards;
}

.kicker {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 0;
  max-width: 10ch;
  font-weight: 400;
  font-size: clamp(56px, 7vw, 96px);
  line-height: 0.92;
  letter-spacing: -0.03em;
}

.lede {
  max-width: 34ch;
  margin: 28px 0 0;
  font-size: clamp(22px, 2vw, 28px);
}

.quiet {
  max-width: 44ch;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 20px;
}

.back {
  display: inline-block;
  margin-top: 36px;
  margin-bottom: 72px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--ink);
  text-decoration: none;
}
.back:hover { opacity: 0.65; }

.colophon {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.colophon a { text-decoration: none; }
.colophon a:hover { opacity: 0.65; }

@keyframes grow { to { width: 72px; } }

@media (prefers-reduced-motion: reduce) {
  .rule { animation: none; width: 72px; }
}

@media (max-width: 860px) {
  .bar { padding: 20px 22px 0; }
  .bar nav { gap: 16px; }
  main { padding: 16vh 22px 40px; }
  .carbon-grid { grid-template-columns: 1fr; gap: 32px; }
}